US7325127B2 - Security server system - Google Patents
Security server system Download PDFInfo
- Publication number
- US7325127B2 US7325127B2 US10/305,726 US30572602A US7325127B2 US 7325127 B2 US7325127 B2 US 7325127B2 US 30572602 A US30572602 A US 30572602A US 7325127 B2 US7325127 B2 US 7325127B2
- Authority
- US
- United States
- Prior art keywords
- message
- conversation
- key
- participant
- participants
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime, expires
Links
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Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/21—Monitoring or handling of messages
- H04L51/23—Reliability checks, e.g. acknowledgments or fault reporting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
- H04L63/062—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
Abstract
Description
-
- Km=One-time, unique key associated with an e-mail;
- Ps=Sender's password;
- Pr=Receiver's password;
- {p}k=p encrypted with key k;
- {p}ssl=p encrypted with the SSL session key; and
- H(p)=One-way hash of p.
-
- the e-mail address of the sender 12 (
emailAddress 103 a); - the contents of the To:, CC:, and BCC: fields (instances of receiverAddr 106 b);
- the contents of the
subject field 58; and - the contents of the
body field 60.
- the e-mail address of the sender 12 (
-
- <?xml version=“1.0” encoding=“ASCII”/>
- <emailPart random=“randomNum” length=“numChars” mic=“messagelntegrityCode”>
- <subject>subject</subject>
- <body>body</body>
- </emailPart>.
-
- the
emailAddress 103 a of thesender 12; - the password 102 b for the
sender 12; - a list of target receivers 16 (receiverAddr 106 b, and implicitly numRecipients 104 d);
- the
subject field 58 of the message (subject 104 i); - a list of computed hashes, one for the body, H(b), and one for each attachment, H(a1), H(a2) . . . H(an); and
- optional configuration information such as an expiration time or maximum number of deliveries allowed per recipient.
- the
-
- <securecorp:messagePart id=“m”>
- <encryptedPart>encrypted body</encryptedPart>
- <seal>seal</seal>
- </securecorp:messagePart>
-
- the e-mail address of the receiver 16 (
emailAddress 103 a); - the password 102 b of the receiver 16; and
- the
messageId 104 a.
- the e-mail address of the receiver 16 (
-
- Confidentiality protection—Ensuring that data can only be viewed by authorized recipients, irrespective of the data location (i.e., in transit or in storage).
- Conversation key—A symmetric key that protects conversation data.
-
- Hub—The network server that processes messages and relays them to appropriate destinations.
- Integrity protection—Ensuring detection of unauthorized modification to data in transit or in storage.
- Join—To start participating in a collaboration.
- Key server—A network server that holds protection keys and releases them to authorized users.
- Leave—To stop participating in a collaboration.
- Header key—A symmetric key that protects the header of a message. Header keys are individually established between the hub and each spoke.
- Message—The basic unit of data exchanged between collaborating parties. A message has two parts, a “header” and “content.”
- Message content—Data that is produced by a collaborating party and is destined for one or more other parties.
- Message header—Data that helps the message router deliver the contents to its destinations.
- Protection—Confidentiality and integrity protection.
- Spoke—Senders or receivers of data; spokes do not relay data.
- Transcript—A record of some part of the collaboration.
-
- To—The destinations of the message.
- From—The origin of the message.
- Date—The date and time of message creation.
- Message ID—A unique identification for the message.
- Content length—The length of the content.
- Content type—The MIME type of the content.
- Priority—The priority of the message.
10 | |
|
12 | |
|
14 | secure e-mail | |
16 | receiver | |
16a | first receiver | |
16b | |
|
18 | sending |
|
20 | receiving unit | |
20a | first receiving unit | |
20b | second receiving |
|
22 | |
|
24 | |
|
26 | |
|
30 | network environment | |
32-42 | |
|
44 | |
|
46 | user-installed |
|
46a- | variations | |
48 | |
|
48a | encrypt |
|
48b | cache password setting | |
48c | cache time setting | |
48d | expiration setting | |
48e | maximum reads setting | |
48f | |
|
50 | |
|
52a-b | send |
|
54 | receive |
|
56 | receiver id fields | |
58 | |
|
60 | |
|
62 | |
|
64 | send securely |
|
66 | |
|
70 | |
|
72 | |
|
| candidate page | |
72b | processed |
|
100 | |
|
102 | users table | |
102a | userId | |
102b | password | |
102c | | |
102d | status | |
103 | user aliases table | |
103a | | |
103b | userId | |
104 | sentMail table | |
104a | messageId | |
104b | senderId | |
104c | dateSent | |
104d | numRecipients | |
104e | messageKey | |
104f | maxDeliveries | |
104g | expiration | |
104h | sealSalt | |
104i | subject | |
104j | | |
104k | deliverAfter | |
106 | receivers table | |
106a | messageId | |
106b | receiverAddr | |
106c | | |
106d | numRequests | |
120 | encryption process | |
122-140 | |
|
150 | decryption process | |
152-168 | |
|
210 | |
|
212 | |
|
212a | |
|
| destination participant | |
214 | |
|
216 | |
|
218 | |
|
220 | conversation key | |
222 | |
|
224 | |
|
226 | header key | |
Claims (28)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/305,726 US7325127B2 (en) | 2000-04-25 | 2002-11-26 | Security server system |
US10/707,190 US7277549B2 (en) | 2000-04-25 | 2003-11-25 | System for implementing business processes using key server events |
US10/707,191 US7376835B2 (en) | 2000-04-25 | 2003-11-25 | Implementing nonrepudiation and audit using authentication assertions and key servers |
PCT/US2003/037954 WO2004049137A2 (en) | 2002-11-26 | 2003-11-26 | Secure key server with nonrepudiation and audit |
EP03790124A EP1573474A2 (en) | 2002-11-26 | 2003-11-26 | Key server for security and implementing processes with nonrepudiation and audit |
CA002506120A CA2506120A1 (en) | 2002-11-26 | 2003-11-26 | Key server for security and implementing processes with nonrepudiation and audit |
AU2003293134A AU2003293134A1 (en) | 2002-11-26 | 2003-11-26 | Key server for security and implementing processes with nonrepudiation and audit |
JP2004555802A JP2006520112A (en) | 2002-11-26 | 2003-11-26 | Security key server, implementation of processes with non-repudiation and auditing |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/558,691 US6584564B2 (en) | 2000-04-25 | 2000-04-25 | Secure e-mail system |
US10/305,726 US7325127B2 (en) | 2000-04-25 | 2002-11-26 | Security server system |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/558,691 Continuation-In-Part US6584564B2 (en) | 2000-04-25 | 2000-04-25 | Secure e-mail system |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/707,190 Continuation-In-Part US7277549B2 (en) | 2000-04-25 | 2003-11-25 | System for implementing business processes using key server events |
Publications (2)
Publication Number | Publication Date |
---|---|
US20030074552A1 US20030074552A1 (en) | 2003-04-17 |
US7325127B2 true US7325127B2 (en) | 2008-01-29 |
Family
ID=32737961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/305,726 Expired - Lifetime US7325127B2 (en) | 2000-04-25 | 2002-11-26 | Security server system |
Country Status (1)
Country | Link |
---|---|
US (1) | US7325127B2 (en) |
Cited By (33)
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US20040148356A1 (en) * | 2002-11-04 | 2004-07-29 | Bishop James William | System and method for private messaging |
US20050171948A1 (en) * | 2002-12-11 | 2005-08-04 | Knight William C. | System and method for identifying critical features in an ordered scale space within a multi-dimensional feature space |
US20050198170A1 (en) * | 2003-12-12 | 2005-09-08 | Lemay Michael | Secure electronic message transport protocol |
US20050244007A1 (en) * | 2004-04-30 | 2005-11-03 | Little Herbert A | System and method for securing data |
US20050273595A1 (en) * | 2004-06-04 | 2005-12-08 | Canon Kabushiki Kaisha | Providing apparatus, communication device, method, and program |
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US20060095770A1 (en) * | 2004-10-29 | 2006-05-04 | Baylis Stephen W | Method of establishing a secure e-mail transmission link |
US20080301320A1 (en) * | 2007-05-31 | 2008-12-04 | Morris Robert P | Method And System For Managing Communication Protocol Data Based On MIME Types |
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